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High Performance Polymers
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Polyamides with Pendant Cinnamoyloxyethyl Units

Elena Rusu

Marioara Nechifor

"Petru Poni" Institute of Macromolecular Chemistry, 6600 Iasi, Romania

A new series of polyamides was prepared from a diamine containing cinnamoyloxyethyl group and aromatic dicarboxylic acids by the phosphorylation method. The diamine containing cinnamoyloxyethyl group was prepared by esterification of 3,5-dinitrobenzoic acid followed by reduction of the dinitro compound to the diamine. The polyamides were synthesized in N-methyl-2-pyrrolidinone containing pyridine, triphenyl phosphite and lithium chloride at 100 °C. The polyamides exhibited inherent viscosities in the range of 0.59-0.73 dL g-1 and glass transition temperatures ranging from 202 to 219 °C. The chemistry and physical properties of these polyamides are discussed herein.

Key Words: polyamides • direct polycondensation • ester pendant group • cinnamate

High Performance Polymers, Vol. 15, No. 2, 197-206 (2003)
DOI: 10.1177/0954008303015002004
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